Abstract

According to Newton, the goals of natural philosophy comprise quantitative generalizations and causal knowledge, the latter being paramount. Quantitative generalizations are sometimes explanatory, in psychology as elsewhere . However, in psychology, they are not explanatory when the human subject is considered qua bearer of psychological states , but only when she is considered qua physical system. In the former case quantitative generalizations are, rather, to be causally explained. In this sense, psychology may be closer to the Newtonian methodological mark than contemporary physics